A Eureka man, his 21-year-old daughter and teenage son were arrested following a Humboldt Drug Task Force investigation, officials said Friday.

Drug task force investigators assisted by the Humboldt County Sheriff's Office, California Highway Patrol and Eureka Police Department stopped 37-year-old John Arthur Moreno in his vehicle on U.S. Highway 101 near McKinleyville around 9:40 p.m. Thursday.

The stop was the result of a two-month methamphetamine investigation by the drug task force, which obtained a Humboldt County Superior Court search warrant for Moreno's vehicle and residence, according to a press release.

Officers detained Moreno and his daughter Amanda Brooke Cranston, who was driving the vehicle.

When officers searched Moreno's vehicle, they located more than two pounds of crystal methamphetamine -- valued at $80,000 -- concealed in a television in the rear of the vehicle, according to the release.

Officers also served a search warrant at Moreno's residence on the 1800 block West Avenue in Eureka and located Moreno's 16-year-old son.

During a search, officials reported seizing 326 growing marijuana plants that ranged in size from 10 inches to three feet in height, according to the release. Officers seized approximately three pounds of dried marijuana and a small amount of marijuana hash.

Officers also located evidence of a butane hash lab in the house, and seized about one-half pound of psilocin mushroom and a loaded handgun from the residence, according to the release.

During their investigation, officers learned that Moreno's son was making marijuana hash in the residence, according to the release. He was arrested on suspicion of cultivation and possession of marijuana for sale. He was taken to juvenile hall.

Moreno was arrested on suspicion of possession of methamphetamine for sale and transportation of methamphetamine, felony child endangerment, being armed in commission of a felony and manufacturing of a butane hash lab. He was booked into the Humboldt County jail on $500,000 bail.

Cranston was arrested on suspicion of possession for sales and transportation of methamphetamine and booked into the Humboldt County jail on $75,000 bail, according to the release.

The case is under investigation by the Humboldt County Drug Task Force and was sent to Humboldt County Child Welfare Services.